Retaining Wall Curve details are often required for specific sites and can be specified by designers and engineers. Correct construction and professional completion of these wall details greatly enhances the visual appeal of the finished project and avoids the time and costs associated with improper installation. This document provides illustrated step-by-step instructions for building convex and concave curves.

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Step 1: Retaining Wall Curve Convex First Course

  • If possible, start building a retaining wall curve from the center and work left and right through the curve
  • Use PVC Flex Pipes to create smooth and accurate Convex curves
  • Use the back of the unit for alignment
  • Remove one or both CornerStone® wings when building a Convex curve
  • Build each course of units by starting at the same place and the same bond as the last course
  • Convex retaining wall curve have a slight increase in batter or setback to the standard 5/8″
  • The taller the wall the larger the Convex first course needs to be. The radius of each additional course will be slightly smaller than the lower course
  • CornerStone® minimum retaining wall curve Concave is approximately 3.6 foot radius

 

retaining-wall-curve-convex-cornerstone

 

Step 2: Retaining Wall Curve Convex Geogrid

  • Each geogrid length should be laid perpendicularly to the wall face
  • Geogrid should not overlap on the CornerStone® units
  • Correct geogrid orientation, strength and length is crucial to the success of the wall project

Retaining Wall Curve Convex with Geogrid CornerStone

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Step 1: Retaining Wall Curve Concave First Course

  • If possible, start building a retaining wall curve from the center and work left and right
    through the curve
  • Use PVC Flex Pipes to create smooth and accurate Concave curves
  • Use the back of the unit for alignment
  • Build each course of units by starting at the same place and the same bond as
    the last course
  • Concave curves have a slight decrease in batter or setback to the standard 5/8″
  • The taller the wall the smaller the Concave first course needs to be. The radius of each additional course will be slightly larger than the lower course
  • CornerStone® minimum Concave curve is approximately 3.6 foot radius

 

Retaining Wall Curve Concave Inside CornerStone

 

 

Step 2: Retaining Wall Curve Concave Geogrid

  • Each geogrid length should be laid perpendicularly to the wall face
  • Geogrid should not overlap on the CornerStone® units
  • To ensure 100% coverage, place a second layer of geogrid centered to the unreinforced triangle zone one course above the main geogrid layer
  • Correct geogrid orientation, strength and length is crucial to the success of the wall project

 

Retaining-Wall-Curve-Concave-Inside-geogrid-CornerStone

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